| Acronym | Definition |
|---|
| SSSA➣Scuola Superiore Sant'Anna (Italian: Saint Anna Advanced School) |
| SSSA➣Soil Science Society of America |
| SSSA➣Small-Signal Stability Analysis |
| SSSA➣Single Sided SwingArm (motorcycle) |
| SSSA➣Sotos Syndrome Support Association |
| SSSA➣Subway Surface Supervisors Association (NYCTA) |
| SSSA➣Space Station Solar Array |
| SSSA➣Substitute Single Service Accommodation (UK MoD) |
| SSSA➣Site Safeguards and Security Agreement |
| SSSA➣Square Spiral Slot Antenna |
| SSSA➣Submarine Sonar Subjective Analysis |